Abstract: A system for real time marketing of perishable commodities, for example food, is presented. The system comprises quality sensors (103) for obtaining information related to quality of the perishable commodities, a sale monitoring system (104) for producing sale monitoring data indicative of consumer demand of the perishable commodities, and a processing and data transfer system (105) for producing quality indicator data on the basis of the information obtained with the quality sensors. The processing and data transfer system is configured to determine selling prices of the perishable commodities in accordance with at least the quality indicator data and the sale monitoring data so that a weakening in the quality tends to decrease a selling price whereas an increase in the consumer demand tends to increase the selling price. Thus, the portion of the perishable commodities which remain unsold can be reduced without excessively sacrificing the price level.

Abstract: A wearable chassis for a helmet has a shape suitable to be worn on a head of a user and being attachable inside a protective structure having a shape protecting the user's from an external impact. The chassis includes one or more connection ports for connecting an electronic device, a control interface for connecting a control unit, a wiring arrangement for connecting the one or more connection ports to the control interface, and a mounting arrangement for attaching an accessory device to the chassis. Moreover, a helmet including such a chassis and the protective structure having a shape protecting a head of a user from an external impact attached to the chassis, as well as a helmet arrangement including such a chassis and one or more protective structures, each having a shape protecting a head of a user from an external impact, removably attachable to the chassis are provided.

Abstract: A wearable chassis for a helmet has a shape suitable to be worn on a head of a user and being attachable inside a protective structure having a shape protecting the user's from an external impact. The chassis includes one or more connection ports for connecting an electronic device, a control interface for connecting a control unit, a wiring arrangement for connecting the one or more connection ports to the control interface, and a mounting arrangement for attaching an accessory device to the chassis. Moreover, a helmet including such a chassis and the protective structure having a shape protecting a head of a user from an external impact attached to the chassis, as well as a helmet arrangement including such a chassis and one or more protective structures, each having a shape protecting a head of a user from an external impact, removably attachable to the chassis are provided.